ATP + pyruvate = ADP + H(+) + phosphoenolpyruvate Allosterically activated by AMP and by several sugar phosphates. Belongs to type II PK (By similarity). Carbohydrate degradation; glycolysis; pyruvate from D-glyceraldehyde 3-phosphate: step 5/5. Homotetramer. Belongs to the pyruvate kinase family.