Enables triokinase activity. Predicted to be involved in carbohydrate phosphorylation; glycerol catabolic process; and regulation of defense response. Predicted to act upstream of or within fructose catabolic process to hydroxyacetone phosphate and glyceraldehyde-3-phosphate and glycolytic process through fructose-1-phosphate. Predicted to be active in cytosol. Orthologous to human TKFC (triokinase and FMN cyclase). [provided by Alliance of Genome Resources, Apr 2022]