Predicted to enable metalloaminopeptidase activity; peptide binding activity; and transition metal ion binding activity. Predicted to be involved in negative regulation of blood pressure and proteolysis. Predicted to be located in several cellular components, including Golgi apparatus; external side of plasma membrane; and secretory granule. Predicted to be active in extracellular space. Is expressed in central nervous system and sensory organ. Orthologous to human RNPEP (arginyl aminopeptidase). [provided by Alliance of Genome Resources, Apr 2022]