The protein encoded by this gene is a member of the immunophilin protein family, which play a role in immunoregulation and basic cellular processes involving protein folding and trafficking. This encoded protein is a cis-trans prolyl isomerase that binds to the immunosuppressants FK506 and rapamycin. It has high structural and functional similarity to FK506-binding protein 1A (FKBP1A), but unlike FKBP1A, this protein does not have immunosuppressant activity when complexed with FK506.
This gene encodes a protein that is part of the immunophilin family, which has a role in immune system regulation and cellular processes like protein folding and transport. The encoded protein is a type of enzyme called a cis-trans prolyl isomerase that binds to substances that suppress the immune response, such as FK506 and rapamycin.