RUPA has pledged to undertake a review to ensure its members have clear parameters on how they should express religious views in the wake of Israel Folau being sacked by Rugby Australia.

Folau's contract was terminated on Monday, almost six weeks after he posted a photo to Instagram that said homosexuals were destined to go to hell unless they repented.

RUPA has called on Rugby Australia to provide players with a framework for outlining what is acceptable and unacceptable.

"RUPA notes that Rugby AU has not yet provided any clear or specific parameters to the professional playing group specifying how it expects individual professional players to express their faith and beliefs in manner acceptable to Rugby AU," the RUPA said in a statement.

"To address this, RUPA will immediately establish and undertake an expression of faith and beliefs review alongside its players, incorporating advice from those with and without strong religious beliefs, with an aim to hold a first meeting of the review committee following the conclusion of the Super Rugby and World Rugby Sevens Series seasons.

"There remains a great deal of work to be done in relation to this subject but what remains paramount and a non-negotiable is empowering all of RUPA's members to feel confident in understanding their rights and their responsibilities when expressing their faith and beliefs.

"RUPA's first and foremost priority is the wellbeing of all professional rugby players in Australia, past and present. RUPA will continue to support Israel to ensure that Israel, Maria and their broader family receive any personal support they need in this difficult transition from Australian rugby."

ACT Brumbies prop Sio says conversations in Canberra have helped clear the air in the past.

Sio has been the Brumbies' elected RUPA director for the past three years and was in Wallabies camp this week when Folau was axed.

"At the Brumbies we've been really good and we've had a lot of player meetings to have open conversations," Sio said.

"Really for us at the Brumbies it came down to commonsense, making sure we have the individual and franchise's integrity at heart when we're doing day to day things.

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"We harp on that a lot. We talk through a lot of things and having the open line of communication really helped us as a group."

RUPA will invite RA and Super Rugby representatives to participate in the review and believe that greater collaboration will result in a better outcome for all parties involved.

A number of Waratahs and Wallabies shared messages of support for Folau after RA's announcement on Friday that his contract would be torn up.

The Folau issue has been an unwanted distraction as three Australian sides jostle for Super Rugby finals positions and the Wallabies start aiming for the World Cup.

Folau could still take action in court, meaning the saga would drag on for even longer.

"RUPA appreciates the difficult position which this incident has placed on Israel's teammates and the broader professional playing group, and we will continue to support each RUPA member," the statement read.

"RUPA remains proud of its diverse playing group and is committed to empowering and supporting each of its members to have conviction to express their faith and beliefs confidently."