Predicted to enable guanyl-nucleotide exchange factor activity. Predicted to be involved in cell population proliferation; positive regulation of Ras protein signal transduction; and response to extracellular stimulus. Predicted to be located in cytosol; nucleoplasm; and plasma membrane. Orthologous to human RASGRP4 (RAS guanyl releasing protein 4). [provided by Alliance of Genome Resources, Apr 2022]