Enables inositol 1,4,5 trisphosphate binding activity. Involved in neuron apoptotic process and phosphatidylserine exposure on apoptotic cell surface. Predicted to be located in several cellular components, including growth cone; membrane raft; and neuronal cell body. Predicted to be part of calcium channel complex. Predicted to be integral component of plasma membrane. Is expressed in brain; cochlea; dorsal root ganglion; and vagus ganglion. Orthologous to human TRPC5 (transient receptor potential cation channel subfamily C member 5). [provided by Alliance of Genome Resources, Apr 2022]