Enables small GTPase binding activity. Involved in dense core granule maturation; regulation of locomotion involved in locomotory behavior; and regulation of neurotransmitter secretion. Located in Golgi apparatus. Expressed in several structures, including excretory system; head; intestine; muscle cell; and nervous system. Human ortholog(s) of this gene implicated in type 1 diabetes mellitus. Is an ortholog of human ICA1L (islet cell autoantigen 1 like).
Map position created from combination of previous interpolated map position (based on known location of sequence) and allele information. Therefore this is not a genetic map position based on recombination frequencies or genetic experiments. This was done on advice of the CGC.