Predicted to enable acetylcholine binding activity and neurotransmitter receptor activity. Predicted to contribute to acetylcholine receptor activity. Involved in regulation of synaptic vesicle exocytosis. Located in dopaminergic synapse. Is expressed in intestine; liver; nervous system; and retina. Orthologous to human CHRNB3 (cholinergic receptor nicotinic beta 3 subunit). [provided by Alliance of Genome Resources, Apr 2022]