Enables actin filament binding activity and channel activity. Acts upstream of or within several processes, including positive regulation of interleukin-1 production; response to ATP; and response to ischemia. Located in plasma membrane. Is expressed in several structures, including male reproductive gland or organ; metanephros; nervous system; sensory organ; and submandibular gland primordium. Orthologous to human PANX1 (pannexin 1). [provided by Alliance of Genome Resources, Apr 2022]