has primary input has small molecule activator chemical entity sodium(1+) sodium channel activity ligand-gated sodium channel activity https://github.com/geneontology/go-ontology/issues/28941 epithelial sodium channel acid-sensing ion channel activity Enables the transmembrane transfer of a sodium ion by a channel that opens when a specific ligand has been bound by the channel complex or one of its constituent parts. Reactome:R-HSA-2672334 GO:0015280 molecular_function gated channel activity ligand-gated monoatomic cation channel activity