Aminotransferase that has 6'-oxoglucosaminyl:L-glutamate aminotransferase activity by catalyzing pyridoxal-5'-phosphate-mediated transamination leading to the conversion of paromamine to neamine in the biosynthetic pathway of kanamycin B. 2-oxoglutarate + neamine = 6'-oxoparomamine + L-glutamate 2'-deamino-2'-hydroxyneamine + 2-oxoglutarate = 2'-deamino-2'-hydroxy-6'-dehydroparomamine + L-glutamate Antibiotic biosynthesis; kanamycin biosynthesis. Belongs to the class-III pyridoxal-phosphate-dependent aminotransferase family.