Intellectual Developmental Disorder, Autosomal Recessive 38, is also known as developmental delay with autism spectrum disorder and gait instability, and has symptoms including pronation of the feet An important gene associated with Intellectual Developmental Disorder, Autosomal Recessive 38 is HERC2 (HECT And RLD Domain Containing E3 Ubiquitin Protein Ligase 2). Affiliated tissues include brain, and related phenotypes are seizure and intellectual disability