Predicted to enable guanyl-nucleotide exchange factor activity. Predicted to be involved in regulation of Ral protein signal transduction and small GTPase mediated signal transduction. Predicted to be located in cytoplasm and plasma membrane. Is expressed in several structures, including alimentary system; cranial ganglion; eye; limb bud; and limb segment. Orthologous to human RALGPS2 (Ral GEF with PH domain and SH3 binding motif 2). [provided by Alliance of Genome Resources, Apr 2022]