RING-type E3 ubiquitin transferase isomerase-like 2; May catalyze the cis-trans isomerization of proline imidic peptide bonds in oligopeptides thereby assisting the folding of proteins (By similarity). May also function as a chaperone, playing a role in transport to the cell membrane of BSG for instance. May also have a protein ubiquitin ligase activity acting as an E3 ubiquitin protein ligase or as an ubiquitin-ubiquitin ligase promoting elongation of ubiquitin chains on substrates. By mediating 'Lys-48'-linked polyubiquitination of proteins could target them for proteasomal degradation; Cyclophilin peptidylprolyl isomerases
Synonyms: PPIL2, PPIL2p, hPPIL2, A0A024R1C1, C9JDF0 ...