Probable protein O-fucosyltransferase required for correct pollen tube penetration through the stigma-style interface (PubMed:29467178). May be involved in protein O-glycosylation events during pollen-pistil interactions (PubMed:29467178). Glycan metabolism. Expressed in dry pollen grains and germinating pollen grains. Altered silique morphology and reduced seed set. Belongs to the glycosyltransferase GT106 family. Truncated N-terminus.