Is predicted to encode a protein with the following domains: Lethal giant larvae(Lgl) like, C-terminal; Lethal giant larvae homologue 2; WD40/YVTN repeat-like-containing domain superfamily; WD40 repeat; Lethal giant larvae (Lgl)-like, C-terminal domain; Lethal(2) giant larvae protein; LLGL2; and WD40-repeat-containing domain superfamily. Is an ortholog of C. elegans tom-1. In C. elegans, tom-1 is involved in several processes, including regulation of presynaptic dense core granule exocytosis; regulation of synaptic vesicle docking; and synaptic vesicle priming.