The function of Ensembl gene identifier ENSG00000124299 (PEPD, peptidase D) is as follows. Dipeptidase that catalyzes the hydrolysis of dipeptides with a prolyl (Xaa-Pro) or hydroxyprolyl residue in the C-terminal position (PubMed:17081196, PubMed:35165443). The preferred dipeptide substrate is Gly-Pro, but other Xaa-Pro dipeptides, such as Ala-Pro, Met-Pro, Phe-Pro, Val-Pro and Leu-Pro, can be cleaved (PubMed:17081196). Plays an important role in collagen metabolism because the high level of iminoacids in collagen (PubMed:2925654). {ECO:0000269|PubMed:17081196, ECO:0000269|PubMed:2925654, ECO:0000269|PubMed:35165443}.