Glutamate-gated receptor that probably acts as non-selective cation channel. Involved in root development. May regulate cell proliferation and cell death in the root apex. May form homomultimers. Expressed at low levels in roots and leaves. By abiotic stresses. Plants are defective in root elongation and show reduced mitotic activity and increased cell death in the root apical meristem (RAM). Belongs to the glutamate-gated ion channel (TC 1.A.10.1) family.