Fmn2 has been implicated in neurodevelopmental disorders, intellectual disability, age-related dementia, microcephaly and sensory processing dysfunction in humans (Perrone et al., 2012; Almuqbil et al., 2013; Law et al., 2014; Agís‐Balboa et al., 2017; Anazi et al., 2017; Marco et al., 2018). This evidence concerns the gene FMN2 and microcephaly.