The domain within your query sequence starts at position 2 and ends at position 26; the E-value for the TOH_N domain shown below is 2.3e-15.

PTPSASSPQPKGFRRAVSEQDTKQA

TOH_N

TOH_N
PFAM accession number:PF12549
Interpro abstract (IPR021164):

This domain family is found in eukaryotes, and is approximately 30 amino acids in length. There is a single completely conserved residue G that may be functionally important. Tyrosine hydroxylase converts L-tyrosine to L-DOPA in the catecholamine synthesis pathway.

GO process:oxidation-reduction process (GO:0055114)
GO function:tyrosine 3-monooxygenase activity (GO:0004511)

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