The domain within your query sequence starts at position 287 and ends at position 478; the E-value for the ResIII domain shown below is 2.7e-8.

WLSALQLEAVTYAAQQHETFLPNGDRAGFLIGDGAGVGKGRTIAGIIYENYLLSRKRALW
FSVSNDLKYDAERDLRDIGAKNILVHSLNKFKYGKISSKHNGSVKKGVIFATYSSLIGES
QSGGKYKTRLKQLLHWCGDDFDGVIVFDECHKAKNLCPVGSSKPTKTGLAVLELQNKLPK
ARVVYASATGAS

ResIII

 ResIII
PFAM accession number:PF04851
Interpro abstract (IPR006935):

This entry represents a domain found in the N terminus of several proteins, including helicases, the R subunit (HsdR) of type I restriction endonucleases ( EC 3.1.21.3 ), the Res subunit of type III endonucleases ( EC 3.1.21.5 ), and the B subunit of excinuclease ABC (uvrB) [ (PUBMED:11178902) (PUBMED:9628345) (PUBMED:16125908) ].

GO function:DNA binding (GO:0003677), hydrolase activity (GO:0016787), ATP binding (GO:0005524)

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