Syngap1-Related Intellectual Disability, also known as syngap1-related developmental and epileptic encephalopathy, is related to intellectual developmental disorder, autosomal dominant 5 and cerebellar atrophy, developmental delay, and seizures, and has symptoms including seizures An important gene associated with Syngap1-Related Intellectual Disability is SYNGAP1 (Synaptic Ras GTPase Activating Protein 1). Affiliated tissues include tongue and eye, and related phenotypes are intellectual disability and global developmental delay