Predicted to enable several functions, including GTP-dependent protein binding activity; guanyl-nucleotide exchange factor activity; and phosphatidic acid binding activity. Predicted to be involved in microvillus assembly; positive regulation of GTPase activity; and protein localization to plasma membrane. Predicted to be located in several cellular components, including apical plasma membrane; centrosome; and endocytic vesicle. Is expressed in nervous system. Orthologous to human RAPGEF6 (Rap guanine nucleotide exchange factor 6). [provided by Alliance of Genome Resources, Apr 2022]