Enables carbohydrate binding activity; glycogen phosphorylase activity; and identical protein binding activity. Involved in 5-phosphoribose 1-diphosphate biosynthetic process and glycogen catabolic process. Located in cytoplasm. Used to study glycogen storage disease VI and lactic acidosis. Human ortholog(s) of this gene implicated in glycogen storage disease; glycogen storage disease VI; and lactic acidosis. Orthologous to human PYGL (glycogen phosphorylase L). [provided by Alliance of Genome Resources, Apr 2022]