Given that over 95% of Ndel1 is complexed to DISC1 in the rat brain (Hayashi et al. 2005), this strong interaction has motivated studies linking Ndel1 oligopeptidase activity to psychiatric and neurological disorders, including SZ, BD, first‐episode psychosis (FEP), and ASD (Gadelha et al. 2013; Dal Mas, Carvalho, et al. 2019; Dal Mas, Nani, et al. 2019; Rodríguez et al. 2020; Nani et al. 2022; Nani et al. 2023; Courchesne et al. 2024). This evidence concerns the gene NDEL1 and Behcet disease.