Predicted to enable solute:proton antiporter activity. Predicted to be involved in anion transmembrane transport; proton transmembrane transport; and sodium ion transport. Predicted to act upstream of or within flagellated sperm motility. Predicted to be located in motile cilium. Orthologous to human SLC9C1 (solute carrier family 9 member C1). [provided by Alliance of Genome Resources, Apr 2022]