Enables carboxypeptidase activity. Is 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. Is expressed in nerve ring; neurons; and preanal ganglion. Human ortholog(s) of this gene are implicated in carboxypeptidase N deficiency; morbid obesity; and type 2 diabetes mellitus. Is an ortholog of human CPE (carboxypeptidase E).
Is affected by several genes including daf-2; egl-43; and meg-3 based on microarray and RNA-seq studies. Is affected by five chemicals including Psoralens; allantoin; and metformin based on RNA-seq studies.