Associated component of the WMM complex, a complex that mediates N6-methyladenosine (m6A) methylation of RNAs, a modification that plays a role in the efficiency of mRNA splicing and RNA processing. Component of the WMM complex, a N6-methyltransferase complex composed of a catalytic subcomplex, named MAC, and of an associated subcomplex, named MACOM. Component of the MACOM subcomplex. Maternally expressed from the 4-cell stage and ubiquitously expressed through early embryogenesis, with enriched expression in the brain region at 36 hpf (hours post fertilization). Multiple developmental defects at 24 hpf (hours post fertilization) including smaller head and eyes, smaller brain ventricle, and curved notochord. Belongs to the fl(2)d family.