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Let $\mathfrak{g}$ be a semi-simple Lie algebra with fixed root system, and$U_q(\mathfrak{g})$ the quantization of its universal enveloping algebra. Let$\mathcal{S}$ be a subset of the simple roots of $\mathfrak{g}$. We show thatthe defining relations for $U_q(\mathfrak{g})$ can be slightly modified in sucha way that the resulting algebra $U_q(\mathfrak{g};\mathcal{S})$ allows ahomomorphism onto (an extension of) the algebra$\mathrm{Pol}(\mathbb{G}_q/\mathbb{K}_{\mathcal{S},q})$ of functions on thequantum flag manifold $\mathbb{G}_q/\mathbb{K}_{\mathcal{S},q}$ correspondingto $\mathcal{S}$. Moreover, this homomorphism is equivariant with respect to anatural adjoint action of $U_q(\mathfrak{g})$ on$U_q(\mathfrak{g};\mathcal{S})$ and the standard action of $U_q(\mathfrak{g})$on $Pol(\mathbb{G}_q/\mathbb{K}_{\mathcal{S},q})$.

Quantum flag manifolds as quotients of degenerate quantized universal enveloping algebras