Enables proton-transporting ATPase activity, rotational mechanism. Predicted to act upstream of or within proton transmembrane transport. Located in cytosol and plasma membrane. Is expressed in embryo; forelimb bud; and metanephros. Orthologous to human ATP6V1G3 (ATPase H+ transporting V1 subunit G3). [provided by Alliance of Genome Resources, Apr 2022]