Mediates both low-affinity uptake and efflux of sugar across the plasma membrane. Confers blight susceptibility (PubMed:25988582). Confers TAL effector-mediated susceptibility to Xanthomonas oryzae pv. oryzae (PubMed:23879865). Forms homooligomers and/or heterooligomers. By the X.oryzae pv. oryzae (Xoo) transcription activator-like effector (TALe) proteins (artificial TAL effectors). Belongs to the SWEET sugar transporter family.