Predicted to enable proton-transporting ATPase activity, rotational mechanism. Predicted to act upstream of or within proton transmembrane transport. Predicted to be located in acrosomal vesicle. Predicted to be part of proton-transporting two-sector ATPase complex, catalytic domain. Orthologous to human ATP6V1E2 (ATPase H+ transporting V1 subunit E2). [provided by Alliance of Genome Resources, Apr 2022]