The domain within your query sequence starts at position 28 and ends at position 306; the E-value for the TMCO5 domain shown below is 5.4e-121.

LKYLNSDLEKDLQRLDEANQILLRKIQKKEESIQSLERDIALSIGRVPERDDFNEILAQK
ETALKDLELESAKLEKKNKTLSKNVMELQKKISKGLKNIASDPETLKKKVTEFKVKLQKS
TESCAQQEKEIAKMESDYQSVFQLCEDQAHYIKKYQEILREMEKEKEVMLLEKEISKAQN
DSSQVVKPGSTLVETIQSNMEKNIIKKQKRKFWLRHFRYLFFMVMIVIRLLGYVFFHLQY
VNPDFLVDTLPMLMSRSSLKWLRDILFPFLTLEVEDVLP

TMCO5

TMCO5
PFAM accession number:PF14992
Interpro abstract (IPR026617):

Proteins in this family are single-pass membrane proteins. Their function is unknown.

This is a PFAM domain. For full annotation and more information, please see the PFAM entry TMCO5