  A consistent SU(6) extension of the Weinberg-Tomozawa meson-baryon chiral
Lagrangian is constructed which incorporates vector meson and baryon decuplet
degrees of freedom. The corresponding Bethe-Salpeter approximation predicts the
existence of an isoscalar spin-parity ${3/2}^-$ $K^*N$ bound state (strangeness
+1) with a mass around 1.7--1.8$ $GeV. It is the highest hypercharge state of
an antidecuplet SU(3) representation and it is unstable through $K^*$ decay.
The estimated width of this state (neglecting d-wave $KN$ decay) turns out to
be small ($\Gamma \le 15 $MeV). Clear signals of this resonance would be found
in reactions like $\gamma p \to {\bar K}^0 p K^+ \pi^-$ by looking at the three
body $p K^+ \pi^-$ invariant mass.
