Predicted to enable glutathione hydrolase activity. Predicted to be involved in glutathione catabolic process and negative regulation of response to oxidative stress. Predicted to be located in membrane. Predicted to be active in plasma membrane. Is expressed in several structures, including glans of male genital tubercle; nervous system; and sensory organ. Orthologous to human GGT7 (gamma-glutamyltransferase 7).