What is the specific reaction in glycolysis that is catalyzed by the enzyme triose-phosphate isomerase?

Conversion of glucose into glucose-6-phosphate

Conversion of fructose-1,6-bisphosphate into two molecules, one being dihydroxyacetone phosphate (DHAP)

Conversion of 3-phosphoglycerate into 2-phosphoglycerate

Conversion of dihydroxyacetone phosphate (DHAP) into glyceraldehyde-3-phosphate