2-oxoglutarate/malate translocator that transports carbon skeletons into chloroplasts for net glutamate synthesis. This translocator exchanges malate for internal succinate, fumarate and 2-oxoglutarate but not for aspartate and glutamate. Involved with DIT2 in primary ammonia assimilation and in the re-assimilation of ammonia generated by the photorespiratory pathway. Imports 2-oxoglutarate into plastids as precursor for ammonia assimilation. 2-oxoglutarate is converted to glutamate, the end product of ammonia assimilation, which is exported to the cytosol by DIT2. Monomer. Expressed in leaves. Circadian regulation with a peak in the middle of the light period. The N-terminus is blocked. Belongs to the SLC13A/DASS transporter (TC 2.A.47) family. DIT1 subfamily.