Enables calcium channel activity. Involved in positive regulation of axon extension; positive regulation of calcium ion import; and positive regulation of cold-induced thermogenesis. Located in cell body; cell surface; and growth cone. Is expressed in central nervous system; dorsal root ganglion; sensory organ; and testis. Orthologous to human TRPV2 (transient receptor potential cation channel subfamily V member 2). [provided by Alliance of Genome Resources, Apr 2022]