label: GDP-galactose:glucose-1-phosphate guanylyltransferase activity
label_lc: gdp-galactose:glucose-1-phosphate guanylyltransferase activity
description: "Catalysis of the reaction: GDP-beta-L-galactose + alpha-D-glucose 1-phosphate = beta-L-galactose-1-phosphate + GDP-alpha-D-glucose."