Predicted to enable guanyl-nucleotide exchange factor activity. Predicted to be involved in regulation of catalytic activity and small GTPase mediated signal transduction. Predicted to act upstream of or within negative regulation of cardiac muscle cell apoptotic process; positive regulation of phosphatidylinositol 3-kinase signaling; and regulation of Ral protein signal transduction. Orthologous to human RGL2 (ral guanine nucleotide dissociation stimulator like 2). [provided by Alliance of Genome Resources, Apr 2022]