Predicted to enable receptor tyrosine kinase binding activity and signaling adaptor activity. Involved in chemosensory behavior; learning or memory; and negative regulation of MAPK cascade. Expressed in several structures, including body wall musculature; egg-laying apparatus; germ cell; head neurons; and spermatheca. Human ortholog(s) of this gene implicated in arteriovenous malformation and basal cell carcinoma. Is an ortholog of human RASA1 (RAS
p21 protein activator 1).