Predicted to enable acetylcholine receptor binding activity. Predicted to be involved in negative regulation of ERK1 and ERK2 cascade and regulation of neurotransmitter receptor activity. Predicted to be located in membrane. Predicted to be active in plasma membrane. Predicted to be anchored component of membrane. Is expressed in alimentary system epithelium; oral cavity; skin; testis; and urinary system. Orthologous to human PSCA (prostate stem cell antigen). [provided by Alliance of Genome Resources, Apr 2022]