Enables proton-transporting ATPase activity, rotational mechanism. Predicted to be involved in positive regulation of Wnt signaling pathway. Predicted to act upstream of or within ion transport. Predicted to be part of vacuolar proton-transporting V-type ATPase, V1 domain. Is expressed in several structures, including alimentary system; metanephros; nervous system; nose; and respiratory system. Orthologous to human ATP6V1C2 (ATPase H+ transporting V1 subunit C2). [provided by Alliance of Genome Resources, Apr 2022]