J.S.
With a divorce in the works, the last thing your daughter needs is her school world turned upside down as well. She will be be going through a very difficult time now and will need her peers and social setting for support.
If it was so important for your children to be exposed to Catholic traditions, you would have chosen a spouse of the same religion.
You said you "don't feel it's fair that he gets to make these decisions" though you also stated that you agreed to raise the children Jewish. You also had a hand in this decision to agree to the Jewish upbringing and school before her birth.
Please be sure that are not wanting to pull your daughter away from her Jewish heritage just to spite her dad during a divorce. You may be using this as an excuse to get close to your daughter because you will have less time with her. She will now spend her time visiting her mom and dad at their respective houses and lose the closeness she had with both of you.
I know I sound harsh but your daughter is stuck in a mess created by you and her dad and it's not her fault. I hope you do the right thing for her.