Penk - preproenkephalin

Predicted to enable opioid receptor binding activity. Acts upstream of or within several processes, including behavioral fear response; sensory perception of pain; and startle response. Predicted to be located in several cellular components, including cell body fiber; perikaryon; and symmetric synapse. Predicted to be active in several cellular components, including axon terminus; dendrite; and neuronal cell body. Is expressed in several structures, including alimentary system; central nervous system; genitourinary system; integumental system; and sensory organ. Orthologous to human PENK (proenkephalin). [provided by Alliance of Genome Resources, Apr 2022]