The region featured in this family is found in various eukaryotic acetyl-CoA carboxylases, N-terminal to the catalytic domain (pfam01039). This enzyme (EC:6.4.1.2) is involved in the synthesis of long-chain fatty acids, as it catalyzes the rate-limiting step in this process.
Jiyao W et al.(2023). "The conserved domain database in 2023.",