Enables acetylcholine-gated cation-selective channel activity. Involved in cation transport and skeletal muscle contraction. Part of acetylcholine-gated channel complex. Human ortholog(s) of this gene implicated in congenital myasthenic syndrome 3A; congenital myasthenic syndrome 3B; and congenital myasthenic syndrome 3C. Orthologous to human CHRND (cholinergic receptor nicotinic delta subunit). [provided by Alliance of Genome Resources, Apr 2022]