ID 3.2.2.14 DE NMN nucleosidase. AN NMNase. CA beta-nicotinamide D-ribonucleotide + H2O = D-ribose 5-phosphate + H(+) + CA nicotinamide. CC -!- The enzyme is thought to participate in an NAD(+)-salvage pathway. CC -!- In eukaryotic organisms this activity has been attributed to CC EC 3.2.2.6. //