Ceroid Lipofuscinosis, Neuronal, 4, also known as cln4b disease, is related to ceroid lipofuscinosis, neuronal, 1 and adult neuronal ceroid lipofuscinosis, and has symptoms including cerebellar ataxia, myoclonus and seizures. An important gene associated with Ceroid Lipofuscinosis, Neuronal, 4 is DNAJC5 (DnaJ Heat Shock Protein Family (Hsp40) Member C5). Affiliated tissues include eye and brain, and related phenotypes are depression and bilateral tonic-clonic seizure