The domain within your query sequence starts at position 8 and ends at position 120; the E-value for the NDUF_C2 domain shown below is 3.4e-52.

HEPLKFLPDEARSLPPPKLNDPRLVYMGLLGYCTGLMDNMLRMRPVMRAGLHRQLLFVTS
FVFAGYFYLKRQNYLYAVKDHDMFGYIKLHPEDFPEKEKKTYAEILEPFHPVR

NDUF_C2

NDUF_C2
PFAM accession number:PF06374
Interpro abstract (IPR009423):

This family consists of several NADH-ubiquinone oxidoreductase subunit b14.5b proteins.

NADH:ubiquinone oxidoreductase (complex I) ( EC 1.6.5.3 ) is a respiratory-chain enzyme that catalyses the transfer of two electrons from NADH to ubiquinone in a reaction that is associated with proton translocation across the membrane (NADH + ubiquinone = NAD+ + ubiquinol) [ (PUBMED:1470679) ]. Complex I is a major source of reactive oxygen species (ROS) that are predominantly formed by electron transfer from FMNH(2). Complex I is found in bacteria, cyanobacteria (as a NADH-plastoquinone oxidoreductase), archaea [ (PUBMED:10940377) ], mitochondria, and in the hydrogenosome, a mitochondria-derived organelle. In general, the bacterial complex consists of 14 different subunits, while the mitochondrial complex contains homologues to these subunits in addition to approximately 31 additional proteins [ (PUBMED:18394423) ].

GO process:mitochondrial electron transport, NADH to ubiquinone (GO:0006120)
GO component:mitochondrial inner membrane (GO:0005743)
GO function:NADH dehydrogenase (ubiquinone) activity (GO:0008137)

This is a PFAM domain. For full annotation and more information, please see the PFAM entry NDUF_C2