label: inositol 1,4,5-trisphosphate-gated calcium channel activity
label_lc: inositol 1,4,5-trisphosphate-gated calcium channel activity
description: "Enables the transmembrane transfer of a calcium ion by a channel that opens when inositol 1,4,5-trisphosphate (IP3) has been bound by the channel complex or one of its constituent parts."