This entry is found in various bacterial and plant 2,3-bisphosphoglycerate-independent phosphoglycerate mutase enzymes, which catalyse the interconversion of 2-phosphoglycerate and 3-phosphoglycerate in the reaction: [2-phospho-D-glycerate + 2,3-diphosphoglycerate = 3-phospho-D-glycerate + 2,3-diphosphoglycerate].