Probable inhibitory regulator of the Ras-cyclic AMP pathway (PubMed:9751798). Plays a role in dendrite formation by melanocytes (PubMed:23999003). {ECO:0000269|PubMed:23999003, ECO:0000269|PubMed:9751798}. This is the function of RASAL1 (RAS protein activator like 1, Ensembl gene identifier ENSG00000111344).