Compound as reactive (1)
NAD+ + β-L-galactopyranose → L-galactono-1,4-lactone + NADH + H+
Compound as product (1)
H2O + β-L-galactose 1-phosphate → β-L-galactopyranose + phosphate
Reversible reaction (1)
2 H2O + GDP-β-L-galactose ↔ 2 H+ + β-L-galactopyranose + phosphate + GMP