Predicted to enable proton transmembrane transporter activity. Predicted to be involved in cellular iron ion homeostasis and cellular response to increased oxygen levels. Predicted to be located in acrosomal vesicle and perinuclear region of cytoplasm. Predicted to be part of vacuolar proton-transporting V-type ATPase, V0 domain. Human ortholog(s) of this gene implicated in autosomal recessive cutis laxa type IIA and wrinkly skin syndrome. Orthologous to human ATP6V0A2 (ATPase H+ transporting V0 subunit a2). [provided by Alliance of Genome Resources, Apr 2022]