PPIases accelerate the folding of proteins during protein synthesis. [protein]-peptidylproline (omega=180) = [protein]-peptidylproline (omega=0) Inhibited by both FK506 and rapamycin, but not by cyclosporin A. Expressed in aorta, brain, heart, kidney, lung, spleen and testis (PubMed:7493967, PubMed:11071917). Not detected in liver (PubMed:7493967). Expressed in 12-day-old mouse; no or barely detectable expression is found in adult tissues. N-glycosylated. Phosphorylated.