The domain within your query sequence starts at position 3 and ends at position 304; the E-value for the Tmem26 domain shown below is 5.6e-125.

GLVLLKALVTRLLFLLHSLVAVWRVTWVKEEHRYWLLALLNLLLVLETVLTLKFKRGRGY
KWLSPAIFVYLVNIMPSLWLLEMHHGNQYCSTQSERMAQNFSRRGDVNQTLSSHRATNGM
GNILELARGFVDNLSMVCEPVWTLGLHQTLLLILIIGRWLLPIGGTITRDQLSELLLMFV
GTAADILEFTTETLKENNVRTNPTLVSGILVVWTWSMLQFPLDLAVQLKLVCPASVKARG
FLRVFLCQYSADLWAIGLSFFIQDGPFLVVRLVLMIYFKVINHMLVFFAVKNSLVMALHF
YR

Tmem26

Tmem26
PFAM accession number:PF09772
Interpro abstract (IPR019169):

The function of this family of transmembrane proteins has not, as yet, been determined.

This is a PFAM domain. For full annotation and more information, please see the PFAM entry Tmem26