Predicted to enable G-protein alpha-subunit binding activity and guanyl-nucleotide exchange factor activity. Predicted to be involved in G protein-coupled receptor signaling pathway. Predicted to act upstream of or within regulation of G protein-coupled receptor signaling pathway. Predicted to be located in cytosol. Predicted to be active in cytoplasm and plasma membrane. Orthologous to human RIC8B (RIC8 guanine nucleotide exchange factor B). [provided by Alliance of Genome Resources, Apr 2022]