part of calcium channel activity calcium-mediated signaling ligand-gated monoatomic cation channel activity ligand-gated calcium channel activity Reactome:R-HSA-1168376 molecular_function Reactome:R-HSA-4420052 Enables the transmembrane transfer of a calcium ions 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-169683 Reactome:R-HSA-169680 GO:0099604