Predicted to enable guanyl-nucleotide exchange factor activity and small GTPase binding activity. Predicted to be involved in endosome transport via multivesicular body sorting pathway; protein transport; and regulation of early endosome to late endosome transport. Predicted to be located in endosome. Predicted to be active in late endosome. Orthologous to human DENND10 (DENN domain containing 10). [provided by Alliance of Genome Resources, Apr 2022]