Predicted to enable DNA binding activity; guanyl-nucleotide exchange factor activity; and protein heterodimerization activity. Predicted to be involved in small GTPase-mediated signal transduction. Is an ortholog of C. elegans
sos-1. In C. elegans,
sos-1 is involved in several processes, including epidermal growth factor receptor signaling pathway; female gamete generation; and positive regulation of vulval development.