Predicted to enable proton-transporting ATPase activity, rotational mechanism. Predicted to be involved in proton transmembrane transport. Predicted to act upstream of or within ion transport. Predicted to be located in membrane. Predicted to be part of proton-transporting V-type ATPase, V0 domain. Is expressed in several structures, including alimentary system; cranium; heart; nervous system; and sensory organ. Orthologous to human ATP6V0E1 (ATPase H+ transporting V0 subunit e1). [provided by Alliance of Genome Resources, Apr 2022]