The domain within your query sequence starts at position 55 and ends at position 349; the E-value for the TMEM206 domain shown below is 7.2e-173.

IRFSKACLKNVFSVLLILIYLLLMAVAVFLVYQTITDFREKLKHPVMSVSYKEVDRYDAP
GIAFYPGQAQLLSCKHHYEVIPPLASPGQPGDRNCTTQRINYTHPFFNHTMQSALIVQGP
QEVKKRELVFLQFRLNQSNEDFSAIDYLLFSSFREFMQSPDKAGFMQACESAYSSWKFSG
GFRTWVKMSLVKTKEEDGREAVEFRQETSVVNYIDQRPAAERSAQLFFVVFEWKDPFIQK
VQDIITANPWNTIALLCGAFLALFKAAEFAKLSVKWMIKIRKRYLKRRGQATNHI

TMEM206

 TMEM206
PFAM accession number:PF15122
Interpro abstract (IPR029366):

This entry represents a group of eukaryotic transmembrane proteins, TMEM206. Their function is not clear. Proteins in this family are approximately 350 amino acids in length.

This is a PFAM domain. For full annotation and more information, please see the PFAM entry TMEM206