Enables proton channel activity and sodium channel activity. Acts upstream of or within sodium ion transmembrane transport. Predicted to be located in membrane. Predicted to be integral component of plasma membrane. Is expressed in ductus deferens; epididymis; ileum; prostate gland; and testis. Orthologous to human ASIC5 (acid sensing ion channel subunit family member 5). [provided by Alliance of Genome Resources, Apr 2022]