Molybdate transporter required for vacuolar molybdate export during senescence. Expressed in leaves. Not detected in roots, shoots and seeds. Up-regulated in senescing leaves. No visible phenotype and no effect on molybdate content in shoots when grown in soil, but increased levels in leaves and decreased levels in seeds. About 80% of the leaf molybdate is exported during senescence. Belongs to the SLC26A/SulP transporter (TC 2.A.53) family.