Enables monoatomic cation channel activity. Involved in several processes, including monoatomic cation homeostasis; positive regulation of locomotion; and response to anesthetic. Located in axon. Part of cation channel complex. Expressed in excretory canal; hermaphrodite distal tip cell; nervous system; and non-striated muscle. Is an ortholog of human UNC80 (
unc-80 homolog, NALCN channel complex subunit).