Predicted to enable guanyl-nucleotide exchange factor activity and small GTPase binding activity. Predicted to be involved in several processes, including positive regulation of GTPase activity; regulation of extracellular matrix constituent secretion; and retrograde transport, endosome to Golgi. Predicted to be located in membrane. Predicted to be part of Ric1-Rgp1 guanyl-nucleotide exchange factor complex. Predicted to be active in Golgi membrane and cytosol. Orthologous to human RIC1 (RIC1 homolog, RAB6A GEF complex partner 1). [provided by Alliance of Genome Resources, Apr 2022]