Predicted to enable SH3 domain binding activity. Predicted to contribute to guanyl-nucleotide exchange factor activity. Acts upstream of or within actin filament-based process and phagocytosis. Part of guanyl-nucleotide exchange factor complex. Is expressed in several structures, including genitourinary system; hemolymphoid system gland; nervous system; retina; and vibrissa. Orthologous to human ELMO1 (engulfment and cell motility 1). [provided by Alliance of Genome Resources, Apr 2022]