ID 3.1.4.51 DE glucose-1-phospho-D-mannosylglycoprotein phosphodiesterase. AN alpha-glucose-1-phosphate phosphodiesterase. CA 6-(alpha-D-glucose-1-phospho)-alpha-D-mannosyl derivative + H2O = alpha- CA D-glucose 1-phosphate + alpha-D-mannose derivative + H(+). CC -!- This enzyme is specific for the product of EC 2.7.8.19. //