Suppose you discover a mutant yeast whose glycolytic pathway…

Suppose you discover a mutant yeast whose glycolytic pathway is shorter because of the presence of a new enzyme that catalyzes the reaction: glyceraldehyde 3-phosphate + H2O + NAD+ —–> 3-phosphoglycerate + NADH + H+ Although this mutant enzyme shortens glycolysis by one step, how does it affectanaerobic ATP production? ?