Predicted to enable acetylcholine-gated monoatomic cation-selective channel activity and transmembrane signaling receptor activity. Predicted to act upstream of or within monoatomic ion transmembrane transport. Predicted to be located in postsynaptic membrane. Is expressed in ectoderm; mesoderm; and musculoskeletal system. Human ortholog(s) of this gene implicated in congenital myasthenic syndrome 1A and congenital myasthenic syndrome 1B. Orthologous to human CHRNA1 (cholinergic receptor nicotinic alpha 1 subunit).