The domain within your query sequence starts at position 14 and ends at position 133; the E-value for the TMEM18 domain shown below is 5.7e-49.

IPAVIMETDWTEPWLLGLLAFHLLCLLLTCFSSQRYKLQIGHFLCLVVLVYSAEYINEVA
AVNWRLFSKYQYFDSRGMFISLVFSAPLLFNAMLIVIMWVRKTLTVMTDLKTLQEERKER

TMEM18

TMEM18
PFAM accession number:PF14770
Interpro abstract (IPR026721):

This entry represent the transmembrane protein 18 (TMEM18). In humans, TMEM18 is a transcription repressor and a sequence-specific ssDNA and dsDNA binding protein, with preference for GCT end CTG repeats [ (PUBMED:21980424) ]. It enhances the tropism of neural stem cells for glioma cells [ (PUBMED:18559506) ].

This is a PFAM domain. For full annotation and more information, please see the PFAM entry TMEM18