Enables beta-lactamase activity and dipeptidase activity. Involved in several processes, including glutathione catabolic process; leukotriene metabolic process; and neutrophil chemotaxis. Predicted to be located in apical part of cell; cell junction; and nucleoplasm. Predicted to be active in plasma membrane. Is expressed in genitourinary system; incisor; and lung. Orthologous to human DPEP1 (dipeptidase 1). [provided by Alliance of Genome Resources, Apr 2022]