Predicted to enable adenyl-nucleotide exchange factor activity and identical protein binding activity. Predicted to be involved in protein transport and regulation of catalytic activity. Predicted to be located in endoplasmic reticulum. Human ortholog(s) of this gene implicated in primary cerebellar degeneration. Orthologous to human SIL1 (SIL1 nucleotide exchange factor). [provided by Alliance of Genome Resources, Apr 2022]