SQSTM1 and cerebellar ataxia: Recently, recessive mutations in SQSTM1 causative of progressive childhood‐onset neurodegenerative disorder characterized by cognitive decline, ataxia, dystonia, and gaze palsy were identified (Haack et al., 2016; Majcher et al., 2015; Muto et al., 2018; Vedartham et al., 2019; Zúñiga‐Ramírez et al., 2019).