beta-D-fructose 1,6-bisphosphate = D-glyceraldehyde 3-phosphate + dihydroxyacetone phosphate Carbohydrate degradation; glycolysis; D-glyceraldehyde 3-phosphate and glycerone phosphate from D-glucose: step 4/4. Homotetramer. Interacts with ATP6V1E1 (By similarity). High expression in the adult brain. Detected at low concentration in practically all the fetal tissues and its expression markedly and rapidly decreased after birth. In vertebrates, three forms of this ubiquitous glycolytic enzyme are found, aldolase A in muscle, aldolase B in liver and aldolase C in brain. Belongs to the class I fructose-bisphosphate aldolase family.