homospermidine synthase (spermidine-specific) activity
Catalysis of the reaction: spermidine + putrescine = sym-homospermidine + propane-1,3-diamine.
GO:0016765
transferase activity, transferring alkyl or aryl (other than methyl) groups
is_a
spermidine:putrescine 4-aminobutyltransferase (propane-1,3-diamine-forming)
related