Enables glucose binding activity and glycogen (starch) synthase activity. Involved in glycogen biosynthetic process and response to glucose. Located in cortical actin cytoskeleton; cytosol; and ectoplasm. Human ortholog(s) of this gene implicated in glycogen storage disease. Orthologous to human GYS2 (glycogen synthase 2). [provided by Alliance of Genome Resources, Apr 2022]