Enables identical protein binding activity and intracellular calcium activated chloride channel activity. Acts upstream of or within chloride transport. Located in non-motile cilium and plasma membrane. Is expressed in dorsal root ganglion; epidermis; medulla oblongata basal plate mantle layer; olfactory epithelium; and spinal cord mantle layer. Orthologous to human ANO2 (anoctamin 2). [provided by Alliance of Genome Resources, Apr 2022]