The domain within your query sequence starts at position 1 and ends at position 206; the E-value for the DUF4521 domain shown below is 2.3e-110.

MESQAATPSSLSGESCTLDLPAVCDTSSYEASQRVSQGSSNSLSSLESHPFLSSSTTDPD
SNSLNTEQKGSWDSENFWLDPSSKGQLETNEEEDGLRKSLDRFYEAFAHPLPGSGDPLSA
SVCQCLSQTISELEGQESQRYALRSFQMAQVIFSRDGCSILQRHSRDTRFYPLEQEGSSV
DDEEPTPGLSREVIRFLLEQTVMKDS

DUF4521

 DUF4521
PFAM accession number:PF15021
Interpro abstract (IPR027821):

SHLD1, also known as RINN3, is a component of the shieldin complex, a vertebrate-specific protein complex which functions as a downstream effector in the 53BP1 pathway, regulates NHEJ (non-homologous end joining) [ (PUBMED:29656893) ].

GO process:regulation of double-strand break repair via nonhomologous end joining (GO:2001032)

This is a PFAM domain. For full annotation and more information, please see the PFAM entry DUF4521