GDP-4-dehydro-6-deoxy-D-mannose reductase activity
gdp-4-dehydro-6-deoxy-d-mannose reductase activity
Catalysis of the reaction: GDP-6-deoxy-D-mannose + NAD(P)+ = GDP-4-dehydro-6-deoxy-D-mannose + NAD(P)H + H+.