Enables voltage-gated calcium channel activity. Involved in ATP transport; protein heterooligomerization; and sensory perception of taste. Located in basolateral plasma membrane. Is expressed in ductus deferens; epididymis; esophagus; ileum; and tongue. Orthologous to human CALHM1 (calcium homeostasis modulator 1). [provided by Alliance of Genome Resources, Apr 2022]