Chrnb4 - cholinergic receptor, nicotinic, beta polypeptide 4

Enables transmitter-gated ion channel activity involved in regulation of postsynaptic membrane potential. Involved in positive regulation of transmission of nerve impulse. Acts upstream of or within several processes, including behavioral response to nicotine; smooth muscle contraction; and synaptic transmission involved in micturition. Located in cholinergic synapse. Is expressed in several structures, including alimentary system; eye; genitourinary system; nervous system; and thymus. Orthologous to human CHRNB4 (cholinergic receptor nicotinic beta 4 subunit). [provided by Alliance of Genome Resources, Apr 2022]