Enables peptidase activity. Predicted to act upstream of or within collagen catabolic process. Is expressed in several structures, including alimentary system; central nervous system; genitourinary system; hemolymphoid system gland; and liver and biliary system. Used to study hypertrophic cardiomyopathy. Human ortholog(s) of this gene implicated in prolidase deficiency. Orthologous to human PEPD (peptidase D). [provided by Alliance of Genome Resources, Apr 2022]