Enables fructose 1,6-bisphosphate 1-phosphatase activity and monosaccharide binding activity. Involved in cellular response to insulin stimulus; fructose 6-phosphate metabolic process; and gluconeogenesis. Located in cytosol. Human ortholog(s) of this gene implicated in fructose-1,6-bisphosphatase deficiency. Orthologous to human FBP1 (fructose-bisphosphatase 1). [provided by Alliance of Genome Resources, Apr 2022]