Enables carboxypeptidase activity. Involved in several processes, including cellular response to carbon dioxide; regulation of multicellular organismal process; and regulation of neurotransmitter levels. Located in axon; cytoplasmic vesicle; and neuronal cell body. Expressed in nervous system and
uv1. Human ortholog(s) of this gene implicated in carboxypeptidase N deficiency; morbid obesity; and type 2 diabetes mellitus. Is an ortholog of human CPE (carboxypeptidase E).