The domain within your query sequence starts at position 1421 and ends at position 1564; the E-value for the SpoU_methylase domain shown below is 2.2e-32.

RLIVVASLIDKPTNLGGLCRTCEVFGAAVLVVGSLQCVSDRQFQHLSVSAEQWLPLVEVR
PSQLMNYLQQKKAEGYTVIGVEQTAQSSDLAQYRFPEKSLLLLGNEREGIPANLIQQLDV
CVEIPQQGIIRSLNVHVSGALLIW

SpoU_methylase

SpoU_methylase
PFAM accession number:PF00588
Interpro abstract (IPR001537): This entry represents a domain found in the spoU protein from E. coli that shows strong similarities to previously characterised 2'-O-methyltransferases [(PUBMED:9321663), (PUBMED:8265370)]. The Mrm1 protein of Saccharomyces cerevisiae has been shown to be required for ribose methylation at a universally conserved nucleotide in the peptidyl transferase centre of the mitochondrial large ribosomal RNA (21S rRNA). Cells reduced in this activity were deficient in formation of functional large subunits of the mitochondrial ribosome. The Mrm1 protein catalyzes the site-specific formation of 2'-O-methylguanosine on in vitro transcripts of both mitochondrial 21S rRNA and E. coli 23S rRNA providing evidence for an essential modified nucleotide in rRNA [(PUBMED:8266080)].
GO process:RNA processing (GO:0006396)
GO function:RNA binding (GO:0003723), RNA methyltransferase activity (GO:0008173)

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